2009893 has 8 divisors (see below), whose sum is σ = 2142720. Its totient is φ = 1878720.

The previous prime is 2009881. The next prime is 2009897. The reversal of 2009893 is 3989002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2009893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2938 + ... + 3556.

It is an arithmetic number, because the mean of its divisors is an integer number (267840).

2^2009893 is an apocalyptic number.

It is an amenable number.

2009893 is a deficient number, since it is larger than the sum of its proper divisors (132827).

2009893 is a wasteful number, since it uses less digits than its factorization.

2009893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2009893 is about 1417.7069513831. The cubic root of 2009893 is about 126.1995033815.

The spelling of 2009893 in words is "two million, nine thousand, eight hundred ninety-three".